Search or list open Kalshi prediction markets (regulated US event contracts)
Search or list open Kalshi prediction markets (regulated US event contracts)
3000 (raw units)
price
2
calls / 30d
2
unique payers
2026-09-08
updated
Provider
x402tap.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "3000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "3000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "3000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "3000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": "5",
"q": "fed rate"
},
"type": "http"
},
"output": {
"example": {
"count": 1,
"markets": [
{
"closeTime": "2099-08-01T04:59:00Z",
"eventTicker": "KXEXAMPLE-99",
"lastPrice": 0.12,
"liquidity": 0,
"status": "active",
"ticker": "KXEXAMPLE-99",
"title": "Example Kalshi market?",
"volume24h": 174.62,
"yesAsk": 0.12,
"yesBid": 0.1
}
],
"query": "fed rate"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"limit": {
"description": "Max markets to return, 1-50 (default 10)",
"type": "string"
},
"q": {
"description": "Optional keyword filter on the market title",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"offer-receipt": {
"info": {
"offers": [
{
"acceptIndex": 0,
"format": "eip712",
"payload": {
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "eip155:8453",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"resourceUrl": "https://x402tap.com/api/kalshi-markets",
"scheme": "exact",
"validUntil": 1788856244,
"version": 1
},
"signature": "0xf2d4b213be5558b16b99bfecdc94c2e8c16fd6e3ab5837c6f99996be688a1a4f6a79e3b2100a27e5ccbd5b043c802b1316575ec8a6750b58edda06ef5ad277021b"
},
{
"acceptIndex": 1,
"format": "eip712",
"payload": {
"amount": "3000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"network": "eip155:137",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"resourceUrl": "https://x402tap.com/api/kalshi-markets",
"scheme": "exact",
"validUntil": 1788856244,
"version": 1
},
"signature": "0x41d77e65b44c56319acf9a7e0bf06b97c9ef21c5d7cf5daf45b00234c76ad0c44e645ee281c9cc891fcf3f24ed921fd1678721d4544f0f7084c4a98e6aed82611c"
},
{
"acceptIndex": 2,
"format": "eip712",
"payload": {
"amount": "3000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"network": "eip155:42161",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"resourceUrl": "https://x402tap.com/api/kalshi-markets",
"scheme": "exact",
"validUntil": 1788856244,
"version": 1
},
"signature": "0xce6f950bd2bfffb973ea17f6f4acacd2cba87400218e2b7daf86e8575372f4e167edbe51382698fdd8aba104845316192b67df7734d8e9584eef5548cb27dafd1c"
},
{
"acceptIndex": 3,
"format": "eip712",
"payload": {
"amount": "3000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"resourceUrl": "https://x402tap.com/api/kalshi-markets",
"scheme": "exact",
"validUntil": 1788856244,
"version": 1
},
"signature": "0x54f1a098bbd76e437531aad95357889870e1b3ab0b50f7c56d8f5a0e70ba61887b4029bf3c757cf5cf1be9067d19e8a07734cd6faecdb511153eb2d970c5f7e31c"
}
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"offers": {
"items": {
"properties": {
"acceptIndex": {
"type": "integer"
},
"format": {
"type": "string"
},
"payload": {
"properties": {
"amount": {
"type": "string"
},
"asset": {
"type": "string"
},
"network": {
"type": "string"
},
"payTo": {
"type": "string"
},
"resourceUrl": {
"type": "string"
},
"scheme": {
"type": "string"
},
"validUntil": {
"type": "integer"
},
"version": {
"type": "integer"
}
},
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"type": "object"
},
"signature": {
"type": "string"
}
},
"required": [
"format",
"signature"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"offers"
],
"type": "object"
}
}
}Use it
curl
curl "https://x402tap.com/api/kalshi-markets" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://x402tap.com/api/kalshi-markets");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://x402tap.com/api/kalshi-markets")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/1131.json, and this resource appears in /discovery/resources and /discovery/search.